Well the boxing bug has me again. I'm looking to start up my 5 man again, But all my accounts are MoP lvl.
So upgrading all accounts is gonna be $250 plus the first month at $75.
I really don't want to spend this much at once but it seems like there is no way around it.
If I don't upgrade all the accounts at once will I notice it(I'm planning on a complete reroll so I wont be into WoD content for some time)
Will there be features on the WoD accounts that I wont be able to use on the MoP accounts?

And I see that the scroll of resurrection is gone so it looks like no amount of free game time is available

Any suggestions or advice